Παραπομπή σε μορφή APA (7η εκδ.)

(1999). Managing the environment and natural resources: Lessons from city program innovations. PIDS Policy Notes.

Παραπομπή σε μορφή Chicago (17η εκδ.)

"Managing the Environment and Natural Resources: Lessons from City Program Innovations." PIDS Policy Notes 1999.

Παραπομπή σε μορφή MLA (9th εκδ.)

"Managing the Environment and Natural Resources: Lessons from City Program Innovations." PIDS Policy Notes, 1999.